$ async-graphql-parser_

Crate

Name: async-graphql-parser New version: 8.0.0-rc.1 Release date: 2026-01-22T19:23:33.578336Z

Crate readme

Short description a high-performance graphql server library that's fully specification compliant

Long description async-graphql is a high-performance GraphQL server library that fully supports static and dynamic schemas with async/await. It ensures type safety, has minimal overhead, and offers easy integrations with popular web frameworks such as poem, actix-web, and warp. The crate is safe as it forbids unsafe code and has a minimum supported Rust version of 1.86.0.

Features • Static and dynamic schemas are fully supported • Fully supports async/await • Type safety • Easy integration (poem, axum, actix-web, warp, rocket) • Upload files (Multipart request) • Subscriptions (WebSocket transport) • Limit query complexity/depth • Apollo Federation(v2)

Code Examples Static schema example

 use std::error::Error;

use async_graphql::{http::GraphiQLSource, EmptyMutation, EmptySubscription, Object, Schema};
use async_graphql_poem::*;
use poem::{listener::TcpListener, web::Html, *};

struct Query;

#[Object]
impl Query {
    async fn howdy(&self) -> &'static str {
        "partner"
    }
}

#[handler]
async fn graphiql() -> impl IntoResponse {
    Html(GraphiQLSource::build().finish())
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
    // create the schema
    let schema = Schema::build(Query, EmptyMutation, EmptySubscription).finish();

    // start the http server
    let app = Route::new().at("/", get(graphiql).post(GraphQL::new(schema)));
    println!("GraphiQL: http://localhost:8000");
    Server::new(TcpListener::bind("0.0.0.0:8000"))
        .run(app)
        .await?;
    Ok(())
}

Dynamic schema example

 use std::error::Error;

use async_graphql::{dynamic::*, http::GraphiQLSource};
use async_graphql_poem::*;
use poem::{listener::TcpListener, web::Html, *};

#[handler]
async fn graphiql() -> impl IntoResponse {
    Html(GraphiQLSource::build().finish())
}

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
    let query = Object::new("Query").field(Field::new(
        "howdy",
        TypeRef::named_nn(TypeRef::STRING),
        |_| FieldFuture::new(async { "partner" }),
    ));

    // create the schema
    let schema = Schema::build(query, None, None).register(query).finish()?;

    // start the http server
    let app = Route::new().at("/", get(graphiql).post(GraphQL::new(schema)));
    println!("GraphiQL: http://localhost:8000");
    Server::new(TcpListener::bind("0.0.0.0:8000"))
        .run(app)
        .await?;
    Ok(())
}

Links • https://async-graphql.github.io/async-graphql/en/index.html • https://async-graphql.github.io/async-graphql/zh-CN/index.html • https://docs.rs/async-graphql • https://github.com/async-graphql/async-graphql • https://crates.io/crates/async-graphql

https://docs.rs/async-graphql/

Release info

Release version: N/A

Release description N/A

Code Examples N/A